Improvement in plows



H. F. BAKER.

Plow.

Patented Oct. 24. 1854.

E'S FROCE UNITED STATES PATENT OFFICE.

HENRY F. BAKER, OF CENTREVILLE, INDIANA.

IMPROVEM ENT IN FLOWS.

Specification forming part of Letters Patent No. 11,821, dated October24, 1854.

To all whom it may concern:

Be it known that I, HENRY I BAKER, of Oentreville, in the county ofWayne and State of Indiana, have invented a new and useful Improvementin Flows; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, forming part of this specification, in whichFigure l isa plan or top view of a plow with my improvements. Fig. 2 isa side elevation of the same.

Similar letters of reference in each of the two figures indicatecorresponding parts.

This invention relates to a new, simple, and useful improvement inhillside plows, whereby the mold-board can be expanded and againcontracted with greater ease and facility than heretofore by theplowman, so as to suit the dili'erent widths of the furrows, as will bepresently shown.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A represents the plow; B, the mold-board of the same, and O the sharecast on the. moldboard. These parts are all united together by afulcrum-pin, a, as shown in Fig. 1.

l) is a curved arm cast on the share 0. It extends back and passes underthe mold-board B, and is attached by a pin, 1), to an arm, 0, cas on theleft side and near the back end of the plow A, as shown. The pin 0passes loosely through a curved slot, (1, cast in the arm D, and securessaid arm, and thereby the share, to the arm 0 of the plow A, in themanner shown. The slot at allows of the share being moved freely in andout in the are of a circle as the mold-board is adjusted.

E is a vertical vibrating rod passing through the beam J, and having itsbearing in the plow at E, as shown.

1* is a slotted arm cast on this rod. Its end is secured to the underside of the mold-board by a pin, d, which passes through a slot, 6, castin the arm F. The slot e allows of the moldboard having a movement inand out in the arc of a circle, as illustrated by red lines in Fig. 1.

G is a lever fitted on the square end of the vertical rod E. This leverserves for turning the rod E, and thereby moving the mold-board andshare out or in, as desired.

H is a stop-bar, secured on one of the rounds which connect the handles1 I of the plow together. The teeth of this bar serve for the lever tobear against after the mold-board and share have been expanded orcontracted, as will be seen in Figv 1. By this simple arrangement theplowman is enabled to adjust the mold-board while standing at the backof the plow with ease and facility to suit any width ofrow, as may beevident.

It is important to have the parts arranged so that they may be operatedby the plowman while he is behind the plow, as it is not always safe toleave the team for this purpose.

I do not claim making mold-boards of plows capable of being expanded andcontracted independent of the manner of eflecting the same; but

What I claim as my invention, and desire to secure by Letters Patent, is

The manner herein described and shown of providing the share (J, whichforms part of the mold-board B, with a curved slotted arm, D d, and themold-board with a curved slotted arm, F, and attaching the slottedcurved end of D to the arm a and its forward end to the point A, andcombining the same with the curved slotted arm F and adjusting-lever Gthrough the vibrating rod E, in such a manner that the plowman can,while behind the plow, adjust the mold-board in the arc of a circle withgreater convenience and facility than heretofore, substantially as andfor the purposes described.

HENRY F. BAKER.

Witnesses WILLIAM DUEY, WILLIAM W. OLINEDINsr.

